Fachbereich Chemie
Kurzbiographie und Publikationen von Ernst Schaumann
Kurzbiographie
| 1943 | geboren in Hamburg |
| 1970 | Promotion bei Wolfgang Walter in Hamburg |
| 1976 | Habilitation in Hamburg |
| 1977-1977 | Postdoktorand bei John E. Baldwin an der University of Oregon, Eugene, USA |
| 1977-1990 | Professor an der Universität Hamburg |
| 1980 | Gastprofessur an der University of Wisconsin, Madison, USA |
| 1986 | Gastprofessur an der University of California, Irvine, USA |
| 1987-2000 | Mitherausgeber des Houben-Weyl |
| 1990-2009 | Professor für Organische Chemie an der TU Clausthal |
| 1998-2000 | Prorektor für den Bereich Lehre an der Technischen Universität Clausthal |
| 2000- | Mitherausgeber der Science of Synthesis |
| 2000-2002 | Rektor der TU Clausthal |
| 2002-2004 | Präsident der TU Clausthal |
| 2004-2004 | Gastprofessur an der National University of Australia, Canberra, Australien |
Weitere Informationen
Publikationen
(nur aus der Hamburger Zeit bis 1990, sowie neuere in Verbindung mit Hamburgern)
.
| Suche: FB Chemie / Hamburg | |
| 2009 | |
| 141 |
Organylthio(silyl)carbenes Tobias Wagner, Jens Lange, Dirk Grote, Wolfram Sander, Ernst Schaumann, Gunadi Adiwidjaja, Arnold Adam, Jürgen Kopf European Journal of Organic Chemistry 5198-5207 (2009) |
2007 | |
| 140 |
Obituary. Professor Wolfgang Walter in memoriam Jürgen Voss , Ernst Schaumann Journal of Sulfur Chemistry 28, 5-9 (2007) |
1995 | |
| 139 |
Additional and Supplementary Volumes of the 4th Edition Herausgeber: Karl Heinz Büchel, Jürgen Falbe, Hermann Hagemann, Michael Hanack, Dieter Klamann, Richard P. Kreher, Heinz Kropf, Manfred Regitz, Ernst Schaumann Houben-Weyl - Methods of Organic Chemistry 1-843 (1995) |
| 138 |
Additional and Supplementary Volumes to the 4th Edition / Hetarenes IV (Six-Membered and Larger Hetero-Rings with Maximum Unsaturation) Ernst Schaumann, Karl Heinz Büchel, Jürgen Falbe, Hermann Hagemann, Michael Hanack, Dieter Klamann, Richard P. Kreher, Heinz Kropf, Manfred Regitz, E. Smeaton Houben-Weyl - Methods of Organic Chemistry E9d (1995) |
1993 | |
| 137 |
Synthesis of vinylcyclopropanes by intramolecular epoxide ring opening. Application for an enantioselective synthesis of dictyopterene A Frank Narjes, Oliver Bolte, Detlef Icheln, Wilfried A. König, Ernst Schaumann Journal of Organic Chemistry 58, 626-632 (1993) |
| 136 |
En,X- und In,X-Verbindungen, Teil 1 Herausgeber: Heinz Kropf, Ernst Schaumann Houben-Weyl - Methoden der Organischen Chemie E15,1, 1200 pp (1993), Verlag: Georg Thieme Verlag, Stuttgart |
| 135 |
En,X- und In,X-Verbindungen, Teil 2 Herausgeber: Heinz Kropf, Ernst Schaumann Houben-Weyl - Methoden der Organischen Chemie E15,2, 1330 pp (1993), Verlag: Georg Thieme Verlag, Stuttgart |
| 134 |
En,X- und In,X-Verbindungen, Teil 3 Herausgeber: Heinz Kropf, Ernst Schaumann Houben-Weyl - Methoden der Organischen Chemie E15,3, 1416 pp (1993), Verlag: Georg Thieme Verlag, Stuttgart |
1991 | |
| 133 |
Synthesis of vinylcyclopropanes from epoxides Ernst Schaumann, Andreas Kirschning, Frank Narjes Journal of Organic Chemistry 56, 717-723 (1991) |
| 132 |
Synthese von rac-Norartemeseol (Synthesis of rac-norartemeseol) Andreas Kirschning, Frank Narjes, Ernst Schaumann Liebigs Annalen der Chemie 933-936 (1991) |
1990 | |
| 131 |
Thioaldehydes and thioketones from 1,3-dithiolane S-oxides Ernst Schaumann, Susanne Winter-Extra, Gerd Rühter Journal of Organic Chemistry 55, 4200-4202 (1990) |
| 130 |
S-Vinyl thiooximes from thioketenes and benzylnitrene Ernst Schaumann, Oliver Bolte, Helmut Behr Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry 182-183 (1990) |
| 129 |
Regiospecific synthesis of 1-silyl substituted 1,4-dienes Ernst Schaumann, Andreas Kirschning Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry 419-421 (1990) |
| 128 |
Iodonium-induced cyclization of 5-silylalk-4-enols Ernst Schaumann, Andreas Kirschning Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry 1481-1483 (1990) |
| 127 |
Synthesis of α,β-unsaturated thiocarboxylic acid S-esters via Horner-Emmons olefination Ernst Schaumann, Bernd Mergardt, Stefan Fittkau Synthesis 47-51 (1990) |
| 126 |
One-pot synthesis of 4,5-unsubstituted 1,3-dithioles and 2-alkylidene-1,3-dithioles from 1,3-dithiolane S-oxides Ernst Schaumann, Susanne Winter-Extra, Knut Kummert, Stefan Scheiblich Synthesis 271-273 (1990) |
| 125 |
Synthesis and reactions of dicobalt hexacarbonyl complexes with 1-(1-alkynyl)-6,6-dichlorobicyclo[3.1.0]hexanes and their 6-oxa and 6-aza analogs V. R. Denisov, M. L. Lupaeva, E. M. Alekseeva, Ernst Schaumann Zhurnal Organicheskoi Khimii 26, 299-305 (1990) |
| 124 |
A desilylation approach to sulfur-substituted cyclobutadienes Ernst Schaumann, Andreas Holst, Gunadi Adiwidjaja 14th International Symposium on the Organic Chemistry of Sulfur. Lodz, Poland. 2-7- September 1990. Abstract of Papers A-O-15 (1990) |
1989 | |
| 123 |
Synthesis of S-alkyl thiocarboxylates from vinylsilanes and chlorothiocarbonates Ernst Schaumann, Bernd Mergardt Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry 1361-1363 (1989) |
| 122 |
Heterocyclic ring-closure reactions. 10. The reactions of diphenyl- and phenyldiazomethane with iminothiones A. M. Sh. El-Sharief, Roger Ketcham, Ernst Schaumann Phosphorus, Sulfur and Silicon and the Related Elements 46, 83-86 (1989) |
| 121 |
[2+1] Cycloaddition of chloro(phenylthio)carbene to vinyl silanes. A facile synthesis of highly functionalized cyclopropanes Ernst Schaumann, Carsten Friese, Gunadi Adiwidjaja Tetrahedron 45, 3163-3170 (1989) |
| 120 |
Cyclopropanes from silyl/sulfur-stabilized carbanions and oxiranes. The interplay of two reaction pathways Ernst Schaumann, Carsten Friese Tetrahedron Letters 30, 7033-7036 (1989) |
| 119 |
The thiocarbonyl group Ernst Schaumann -/- Herausgeber: Saul Patai Chem. Double-Bonded Funct. Groups 2 (2) 1269-1367 (1989), Verlag: Wiley, Chichester |
1988 | |
| 118 |
Cycloadditionsreaktionen von Heterocumulenen, XXIX. Reaktion von Thioketenen mit Isocyanaten (Cycloaddition reactions of heterocumulenes. XXIX. Reactions of thioketenes with isocyanates) Ernst Schaumann, Marianne Möller, Gunadi Adiwidjaja Chemische Berichte 121, 689-699 (1988) |
| 117 |
Über das Reaktionsverhalten von 4-Thioxo-2-azetidinonen (On the reactivity of 4-thioxo-2-azetidinones) Ernst Schaumann, Marianne Möller Chemische Berichte 121, 701-707 (1988) |
| 116 |
Thioketone und Enthiolate durch 1,3-anionische Cycloreversion von Dithiolan-Derivaten (Thio ketones and enethiolates by 1,3-anionic cycloreversion of dithiolane derivatives) Ernst Schaumann, Gerd Rühter Chemische Berichte 121, 1159-1163 (1988) |
| 115 |
Thioketen-Synthesen, VII. Thioketene durch [3 + 2]-Cycloreversion von 1,3-Dithiolan-Derivaten (Thioketene syntheses. VIII. Thioketenes by [3+2] cycloreversion of 1,3-dithiolane derivatives) Ernst Schaumann, Stefan Scheiblich, Ulrich Wriede, Gunadi Adiwidjaja Chemische Berichte 121, 1165-1175 (1988) |
| 114 |
Reactions
of trimethylsilyl isocyanate and isothiocyanate with 3-(dialkylamino)-2H-azirines. A facile synthesis of 1-unsubstituted 4-(dialkylamino)imidazolin-2-ones and 4-(dialkylamino)imidazoline-2-thiones Isabel Handke, Ernst Schaumann, Roger Ketcham Journal of Organic Chemistry 53, 5298-5300 (1988) |
| 113 |
The chemistry of thioketenes Ernst Schaumann Tetrahedron 44, 1827-1871 (1988) |
| 112 |
Ring-opening of oxiranes by silyl-substituted allyl anions. A regiochemical chameleon Ernst Schaumann, Andreas Kirschning Tetrahedron Letters 29, 4281-4284 (1988) |
| 111 |
Ring-opening of epoxides with sulfur-substituted allylic anions Norbert Nowatzyk, Carsten Friese, Ernst Schaumann XIII International Symposium on the Organic Chemistry of Sulfur. 7-12 August 1988, Odense, Denmark. Abstracts of Papers 103-103 (PA 17) (1988) |
| 110 |
Two novel routes to thioacrylic esters Bernd Mergardt, Ernst Schaumann XIII International Symposium on the Organic Chemistry of Sulfur. 7-12 August 1988, Odense, Denmark. Abstracts of Papers 114-114 (PA 27) (1988) |
| 109 |
Synthesis and reactions of 3-Trimethyl-2-azetidinethiones Carsten Spanka, Rainer Isecke, Ernst Schaumann XIII International Symposium on the Organic Chemistry of Sulfur. 7-12 August 1988, Odense, Denmark. Abstracts of Papers 176-176 (PC 19) (1988) |
1987 | |
| 108 |
Methyl Shifts in 1,4-Dipoles from Sulfonyl Isocyanates and Ketene O,N-Acetals (Methyl shifts in 1,4-dipoles from sulfonyl isocyanates and ketene O,N-acetals) Ernst Schaumann, Torsten Marr, Hildegard Nimmesgern, Stefan Sieveking Chemische Berichte 120, 335-337 (1987) |
| 107 |
Alkyl Shifts in 1,4-Dipoles from Tosyl Iso(thio)cyanate and Imido(thio)carbonates or Isoureas (Alkyl shifts in 1,4-dipoles from tosyl iso(thio)cyanate and imido(thio)carbonates or isoureas) Ernst Schaumann, Jörg Dietz, Erwin Kausch, Gerd C. Schmerse Chemische Berichte 120, 339-344 (1987) |
| 106 |
Cycloadditionsreaktionen von Heterocumulenen, XXVIII Ein durch "no-bond"-Resonanz stabilisierter 1,6-Dipol. - Molekülstruktur und Reaktionsverhalten (Cycloaddition reactions of heterocumulenes. XXVIII. A 1,6-dipole stabilized by no-bond resonance. Molecular structure and reactivity) Ernst Schaumann, Erwin Kausch, Karl-Heinz Klaska, Rolf Klaska, Joachim Eck Chemische Berichte 120, 405-410 (1987) |
| 105 |
Novel routes to thiocarbonyl compounds Ernst Schaumann Studies in Organic Chemistry 28, 251-266 (1987) |
1986 | |
| 104 |
Reactive double bond systems via (3 + 2) cycloreversion of heterocycles Ernst Schaumann Bulletin des Societes Chimiques Belges 95, 995-1008 (1986) |
| 103 |
1,3-Anionic cycloaddition of 1,3-diphenyl-2-azaallyllithium to thioketenes and thioketene S-oxides Ernst Schaumann, Helmut Behr, Gunadi Adiwidjaja Heterocycles 24, 1237-1242 (1986) |
| 102 |
Nucleophilic addition of lithiated phenyl trimethylsilylmethyl sulfide to activated olefins. A facile synthesis of 2-(functionally) substituted silylcyclopropanes Ernst Schaumann, Carsten Friese, Carsten Spanka Synthesis 1035-1037 (1986) |
1985 | |
| 101 |
Chemistry of 2-diphenylphosphoryl ketene thioacetals Ernst Schaumann, Stefan Fittkau Bulletin des Societes Chimiques Belges 94, 463-474 (1985) |
| 100 |
Heterocyclic ring-closure reactions. 8. Reactions of isothiocyanates with cyanothioformamides. Cyclization of 5-imino-4-thioxo-2-imidazolidones and 5-imino-2,4-imidazolidinedithiones to 5,7-dihydrodiimidazo[4,5-b:4',5'-e]pyrazine-2,6(1H,3H)-diones and -dithiones Ismail Khattak, Roger Ketcham, Ernst Schaumann, Gunadi Adiwidjaja Journal of Organic Chemistry 50, 3431-3434 (1985) |
| 99 |
Photochemical behavior of thioketenes in solution: reaction from S2 Sharat Singh, Hildegard Nimmesgern, Ernst Schaumann, Vaidhyanathan Ramamurthy Journal of Organic Chemistry 50, 4799-4805 (1985) |
| 98 |
Synthesis of alkyl 2-alkenimidothioates from alkyl 2-(diethoxyphosphinyl)alkanimidothioates and aldehydes via Wittig-Horner olefination Ernst Schaumann, Stefan Fittkau Synthesis 172-174 (1985) |
| 97 |
Fragmentation of 1,3-dithiolane-derived sulfur ylides. A convenient thioaldehyde synthesis Ernst Schaumann, Gerd Rühter Tetrahedron Letters 26, 5265-5268 (1985) |
| 96 |
Generation of thioketenes via cycloreversion of 1,3-dithiolane-derived sulfur ylides Ernst Schaumann, Stefan Scheiblich Tetrahedron Letters 26, 5269-5272 (1985) |
| 95 |
Wolfgang Walter 65 Jahre Ernst Schaumann, Jürgen Voss Uni HH: Berichte und Meinungen aus der Universität Hamburg 16 (1) 79-80 (1985) [Uni-HH 16(1)79] |
| 94 |
Thioketene und deren Derivate Ernst Schaumann Houben-Weyl - Methoden der Organischen Chemie E11, 232-341 (1985), Verlag: Thieme, Stuttgart Alternativer Quellentitel: Houben-Weyl-Müller - Methoden der Organischen Chemie |
1984 | |
| 93 |
Thiopenam Derivatives from Alkynyl Silyl Sulfides and 4,5-Dihydrothiazoles Ernst Schaumann, Wolf-Rüdiger Förster, Gunadi Adiwidjaja Angewandte Chemie, International Edition in English 23, 439-440 (1984) Translated: Angewandte Chemie 96, 429-430 (1984) |
| 92 |
1-Cyanalkyliden-substituierte 1,3-Dithietanone als Cyanthioketen-Äquivalente. Umsetzung zu 1,3,5-Dithiazin-4-onen und 2-Azetidinthionen (1-Cyanoalkylidene-substituted 1,3-dithietanones as cyanothioketene equivalents. Conversion into 1,3,5-dithiazin-4-ones and 2-azetidinethiones) Ernst Schaumann, Ulrich Wriede, Gunadi Adiwidjaja Chemische Berichte 117, 2205-2225 (1984) |
| 91 |
Oxidation of thioketenes by singlet oxygen V. Jayathirtha Rao, Vaidhyanathan Ramamurthy, Ernst Schaumann, Hildegard Nimmesgern Journal of Organic Chemistry 49, 615-621 (1984) |
| 90 |
α,β-Unsaturated thioamines via Wittig-Horner olefination Ernst Schaumann, Stefan Fittkau Tetrahedron Letters 25, 2325-2328 (1984) |
| 89 |
Synthesic Uses of Alkynyl Silyl Sulfides Ernst Schaumann, Wolf-Rüdiger Förster, Rainer Isecke Eleventh International Symposium on the Organic Chemistry of Sulphur. Abstracts B1.03.O (1984) (Lindau/Lake Constance, September 10-14th, 1984) |
| 88 |
Reactive Double Bond Systems via Fragmentation of Thiolane Derivatives Gerd Rühter, Ernst Schaumann, Stefan Scheiblich, Ulrich Wriede Eleventh International Symposium on the Organic Chemistry of Sulphur. Abstracts B1.38.P (1984) (Lindau/Lake Constance, September 10-14th, 1984) |
| 87 |
Chemistry of 4-Thioxo-2-azetidinones Marianne Möller, Ernst Schaumann Eleventh International Symposium on the Organic Chemistry of Sulphur. Abstracts B3.28.P (1984) (Lindau/Lake Constance, September 10-14th, 1984) |
| 86 |
Schutzgruppen der alkoholischen Hydroxy-Funktion Ernst Schaumann Houben-Weyl - Methoden der Organischen Chemie VI/1b, 735-783 (1984) Alternativer Quellentitel: Houben-Weyl-Müller - Methoden der Organischen Chemie |
| 85 |
Umwandlung von Alkoholen Ernst Schaumann Houben-Weyl - Methoden der Organischen Chemie VI/1b, 797-960 (1984) Alternativer Quellentitel: Houben-Weyl-Müller - Methoden der Organischen Chemie |
1983 | |
| 84 |
A Novel Route to Thiocarbonyl Compounds Ernst Schaumann, Ulrich Wriede, Gerd Rühter Angewandte Chemie, International Edition in English 22, 55-56 (1983) Translated: Angewandte Chemie 95, 52-53 (1983) |
| 83 |
Cycloadditionsreaktionen von Heterocumulenen, XXVI. Cycloaddukte aus Arylisothiocyanaten und 2,2-disubstituierten Enaminen (Cycloaddition reactions of heterocumulenes. XXVI. Cycloadducts from aryl isothiocyanates and 2,2-disubstituted enamines) Ernst Schaumann, Hans-Günther Bäuch, Stefan Sieveking, Gunadi Adiwidjaja Chemische Berichte 116, 55-65 (1983) |
| 82 |
Cycloadditionsreaktionen von Heterocumulenen, XXVII. 2-Alkyliden-1,3,4-thiadiazoline durch 1,3-dipolare Cycloaddition von Diazoalkanen an Thioketene (Cycloaddition reactions of heterocumulenes. XXVII. 2-Alkylidene-1,3,4-thiadiazolines via 1,3-dipolar cycloaddition of diazoalkanes to thioketenes) Ernst Schaumann, Helmut Behr, Jörg Lindstaedt Chemische Berichte 116, 66-73 (1983) |
| 81 |
Eine neue Synthese und Reaktionsverhalten von (Aminoethinyl)sulfiden (New synthesis and reaction behavior of aminoethynyl sulfides) Ernst Schaumann, Jörg Lindstaedt, Wolf-Rüdiger Förster Chemische Berichte 116, 509-513 (1983) |
| 80 |
Thioketen-Synthesen, VII. Substituenteneffekte auf die Thio-Claisen-Umlagerung von Alkinyl(allyl)sulfiden (Thioketene syntheses. VII. Substituent effects on the thio-Claisen rearrangement of alkynyl allyl sulfides) Ernst Schaumann, Jörg Lindstaedt Chemische Berichte 116, 1728-1738 (1983) |
| 79 |
Intramolecular competition experiments on sulfide vs. thiocarbonyl oxidation. Evidence for electronic and steric deactivation of thiocarbonyl groups Ernst Schaumann, Bettina Lange, Karin Reinholdt Journal of the Chemical Society, Chemical Communications 797-798 (1983) |
| 78 |
Synthesis and Wittig-Horner reactions of 1-(functionally)substituted 2,2-dimethylpropanephosphonic esters (1-t-butyl-substituted phosphonic esters) Ernst Schaumann, Stefan Fittkau Synthesis 449-450 (1983) |
1982 | |
| 77 |
[2+2]-Cycloreversions Ernst Schaumann, Roger Ketcham Angewandte Chemie, International Edition in English 21, 225-247 (1982) Translated: Angewandte Chemie 94, 231-253 (1982) |
| 76 |
A Novel Method for the Synthesis of Thiiranimines Ernst Schaumann, Hildegard Nimmesgern, Gunadi Adiwidjaja Angewandte Chemie, International Edition in English 21, 694-695 (1982) Translated: Angewandte Chemie 94, 706-706 (1982) |
| 75 |
Cycloadditionsreaktionen von Heterocumulenen, XXIV. Selenazol-Derivate aus Carbondiselenid und 3-(Dimethylamino)-2H-azirinen (Cycloaddition reactions of heterocumulenes. XXIV. Selenazole derivatives from carbon diselenide and 3-(dimethylamino)-2H-azirines) Ernst Schaumann, Hildegard Nimmesgern, Gunadi Adiwidjaja, Lars Carlsen Chemische Berichte 115, 2516-2525 (1982) |
| 74 |
Thioketen-Synthesen, VI. Stabile Thioketene durch Schwefelung sterisch gehinderter Acylchloride (Thioketene syntheses. VI. Stable thioketenes via sulfuration of sterically hindered acyl chlorides) Ernst Schaumann Chemische Berichte 115, 2755-2765 (1982) |
| 73 |
Cycloadditionsreaktionen von Heterocumulenen, XXV. Cycloaddukte und Umlagerungsprodukte aus der Umsetzung von Isothiocyanaten mit Keten-acetalen (Cycloaddition reactions of heterocumulenes. XXV. Cycloadducts and rearrangement products from the reaction of isothiocyanates with ketene acetals) Ernst Schaumann, Hans-Günther Bäuch, Stefan Sieveking, Gunadi Adiwidjaja Chemische Berichte 115, 3340-3352 (1982) |
1981 | |
| 72 |
Surprising
stereochemistry of the cycloaddition of vinyl ethers with sulfonyl isothiocyanates Ernst Schaumann, Hans-Günther Bäuch, Gunadi Adiwidjaja Angewandte Chemie, International Edition in English 93, 600-601 (1981) Translated: Angewandte Chemie 93, 600-601 (1981) |
| 71 |
Cycloadditionsreaktionen von Heterokumulenen, XXI. [2:1]- und [3:1]-Addukte aus Isocyanaten und 3-Dimethyl-amino-2H-azirinen (Cycloaddition reactions of heterocumulenes. XXI. [2:1]- and [3:1]-Adducts from isocyanates and 3-dimethylamino-2H-azirines) Ernst Schaumann, Susanne Grabley, Gunadi Adiwidjaja Liebigs Annalen der Chemie 264-276 (1981) |
| 70 |
Cycloadditionsreaktionen von Heterokumulenen, XXII. Umsetzung von Thioketenen mit 3-Dimethylamino-2H-azirinen (Cycloaddition reactions of heterocumulenes. XXII. Reactions of thioketenes with 3-dimethylamino-2H-azirines) Ernst Schaumann, Susanne Grabley, Fritz-Feo Grabley, Erwin Kausch, Gunadi Adiwidjaja Liebigs Annalen der Chemie 277-289 (1981) |
| 69 |
Cycloadditionsreaktionen von Heterokumulenen, XXIII. Stickstoffhaltige Fünfring-Heterocyclen aus Carbodiimiden oder Keteniminen mit 3-Dimethylamino-2 H-azirinen (Cycloaddition reactions of heterocumulenes. XXIII. Nitrogen-containing five-membered heterocycles from carbodiimides or ketenimines with 3-dimethylamino-2H-azirines) Ernst Schaumann, Susanne Grabley Liebigs Annalen der Chemie 290-305 (1981) |
| 68 |
Reactions of thioketene S-oxides with diazo compounds. A novel synthesis of heterocyclic sulfines Ernst Schaumann, Helmut Behr, Gunadi Adiwidjaja, A. Tangerman, B. H. M. Lammerink, B. Zwanenburg Tetrahedron 37, 219-225 (1981) |
1980 | |
| 67 |
Umlagerung von α-Isocyanato-N2-(arylsulfonyl)amidinen in 1-Arylsulfonyl-3-imidazolin-2-one (Rearrangement of α-isocyanato-N2-(arylsulfonyl)amidines to 1-arylsulfonyl-3-imidazolin-2-ones) Ernst Schaumann, Susanne Grabley Chemische Berichte 113, 934-940 (1980) |
| 66 |
Cycloadditionsreaktionen von Heterocumulenen, XIX. 1:1-, 2:1- und 1:2-Cycloaddukte aus der Umsetzung von Thioketenen mit Azomethinen (Cycloaddition reactions of heterocumulenes. XIX. 1:1-, 2:1-, and 1:2-Cycloadducts from the reaction of thioketenes with azomethines) Ernst Schaumann, Jörn Ehlers, Fritz-Feo Grabley Chemische Berichte 113, 3010-3023 (1980) |
| 65 |
Cycloadditionsreaktionen von Heterocumulenen, XX. Umsetzung von Allyl(trimethylsilyl)thioketenen mit Azomethinen (Cycloaddition reactions of heterocumulenes. XX. Reaction of allyl(trimethylsilyl)thioketenes with azomethines) Ernst Schaumann, Fritz-Feo Grabley Chemische Berichte 113, 3024-3038 (1980) |
| 64 |
6-Dimethylamino-1,4-etheno-5,5-dimethyl-8-oxo-N,9-diphenyl-2,3,4,4a,5,8-hexahydro-1H-pyridazino[4,5-d]azepine-2,3-dicarboximide, C28H27N5O3 Maurice van Meerssche, Gabriel Germain, Jean Paul Declercq, Roland Touillaux, Ernst Schaumann, Susanne Grabley Crystal Structure Communications 9, 509-514 (1980) |
| 63 |
Competing reaction pathways in the cycloaddition of 3-(dimethylamino)-2H-azirines with ketenes Ernst Schaumann, Susanne Grabley, Michel Henriet, Leon Ghosez, Roland Touillaux, Jean Paul Declercq, Gabriel Germain, Maurice van Meerssche Journal of Organic Chemistry 45, 2951-2955 (1980) |
| 62 |
Heterocyclic ring-closure reactions. 6. Preparation and further cyclization reactions of 5-imino-1,3-diphenyl-4-thioxo-2-imidazolidinone and 5-imino-1,3-diphenyl-2,4-imidazolidinedithione Roger Ketcham, Ernst Schaumann Journal of Organic Chemistry 45, 3748-3750 (1980) |
| 61 |
Gas-phase Thermolysis of a Thioketen-S-Oxide Lars Carlsen, Helge Egsgaard, Ernst Schaumann Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry 1206-1211 (1980) |
| 60 |
Gas-phase thermolyses. Part 3. Gas-phase thermolysis of silylated thionocarboxylic acid derivatives: a route to thioketenes? Lars Carlsen, Helge Egsgaard, Ernst Schaumann, Herbert Mrotzek, Wolf-Rüdiger Klein Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry 1557-1562 (1980) |
| 59 |
Heterocyclic ring-closure reactions; VII. A facile synthesis of 5-imino-4-oxazolidinethiones and 4-thioxo-5-oxazolidinones Roger Ketcham, Ernst Schaumann, Thomas Niemer Synthesis 869-870 (1980) |
| 58 |
Tetraethylammonium hydrogen sulfide; a convenient reagent for thiolation of 1,1-dichloroalkenes Ernst Schaumann, Ulrich Wriede, Jörn Ehlers Synthesis 907-908 (1980) |
| 57 |
4-Thioxo-2-azetidinones by cycloaddition of thioketenes with isocyanates Ernst Schaumann, Armin Röhr, Gunadi Adiwidjaja Tetrahedron Letters 21, 4247-4250 (1980) |
| 56 |
Stable selenoketenes via selena-Cope rearrangement Ernst Schaumann, Fritz-Feo Grabley Tetrahedron Letters 21, 4251-4254 (1980) |
1979 | |
| 55 |
Cycloadditionsreaktionen von Heterocumulenen, XVII. Über den Mechanismus der [2+2]-Cycloaddition von Thioketenen mit Azomethinen (Cycloaddition reactions of heterocumulenes. XVII. On the mechanism of the [2 + 2] cycloaddition of thioketenes with azomethines) Ernst Schaumann, Jörn Ehlers Chemische Berichte 112, 1000-1011 (1979) |
| 54 |
Thiirene als Zwischenstufen der Thermolyse von 1,2,3-Thiadiazolen (Thiirenes as intermediates in the thermolysis of 1,2,3-thiadiazoles) Ernst Schaumann, Jörn Ehlers, Wolf-Rüdiger Förster, Gunadi Adiwidjaja Chemische Berichte 112, 1769-1778 (1979) |
| 53 |
Kristall- und Molekülstruktur eines Ketens, eines Thioketens und eines Thioketen-S-oxids (Crystal and molecular structures of a ketene, a thioketene, and a thioketene S-oxide) Ernst Schaumann, Surya Harto, Gunadi Adiwidjaja Chemische Berichte 112, 2698-2708 (1979) |
| 52 |
Gas phase thermolyses. Part I. Oxathiiranes. Part VI. Thermal decomposition of a thioketene S-oxide Lars Carlsen, Helge Egsgaard, Ernst Schaumann, Jörn Ehlers Chemistry & Industry 851-852 (1979) |
| 51 |
Thioketyls. 3. Radical anions of thioketenes Claus-Peter Klages, Sylvia Köhler, Ernst Schaumann, Wolfgang Schmüser, Jürgen Voss Journal of Physical Chemistry 83, 738-741 (1979) |
| 50 |
Photolysis of thioketene S-oxides Lars Carlsen, Ernst Schaumann Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases 75, 2624-2627 (1979) |
| 49 |
Cycloadditionsreaktionen von Heterokumulenen, XVIII Umsetzung des tert-Butylcyanketens mit cyclischen Thioimidsäureestern (Cycloaddition reactions of heterocumulenes. XVIII. Reactions of tert-butylcyanoketene with cyclic thioimidates) Ernst Schaumann, Herbert Mrotzek, Frank Assmann Liebigs Annalen der Chemie 334-340 (1979) |
| 48 |
Zur Chemie der α-Thiocarbamoylcarbodiimide (Chemistry of α-thiocarbamoylcarbodiimides) Ernst Schaumann, Helmut Behr, Gunadi Adiwidjaja Liebigs Annalen der Chemie 1322-1336 (1979) |
| 47 |
Thioketen-Synthesen, II. Über die Bildung von Thioketenen aus Alkylidenphosphoranen und Kohlenstoffdisulfid (Thioketene syntheses. II. Formation of thioketenes from alkylidenephosphoranes and carbon disulfide) Ernst Schaumann, Fritz-Feo Grabley Liebigs Annalen der Chemie 1702-1714 (1979) |
| 46 |
Thioketen-Synthesen, III. Umsetzung von Phosphonat-Carbanionen mit Kohlenstoffdisulfid (Thioketene syntheses. III. Reactions on phosphonate carbanions with carbon disulfide) Ernst Schaumann, Fritz-Feo Grabley Liebigs Annalen der Chemie 1715-1733 (1979) |
| 45 |
Thioketen-Synthesen, IV. Thioketene aus 5-Alkyl- oder 5-heterosubstituierten 1,2,3-Thiadiazolen; Hinweise auf die Beteiligung von Thiirenen (Thioketene syntheses. IV. Thioketenes from 5-alkyl- or 5-heterosubstituted 1,2,3-thiadiazoles; indications for the participation of thiirenes) Ernst Schaumann, Jörn Ehlers, Herbert Mrotzek Liebigs Annalen der Chemie 1734-1745 (1979) |
| 44 |
Thioketen-Synthesen, V. Allyl-substituierte Thioketene durch Thio-Claisen-Umlagerung (Thioketene syntheses. V. Allyl-substituted thioketenes via thio-Claisen rearrangement) Ernst Schaumann, Fritz-Feo Grabley Liebigs Annalen der Chemie 1746-1755 (1979) |
1978 | |
| 43 |
γ-Sultenes and 1,3-oxazolidinethiones by 1,3-dipolar cycloaddition of thioketene S-oxides to azomethines Ernst Schaumann, Jörn Ehlers, Ulrich Behrens Angewandte Chemie, International Edition in English 17, 455-456 (1978) Translated: Angewandte Chemie 90, 480-481 (1978) |
| 42 |
Cycloadditionsreaktionen von Heterocumulenen, XI: Umsetzung des monomeren und des dimeren tert-Butylcyanketens mit Azomethinen (Cycloaddition reactions of heterocumulenes, XI. Reactions of monomeric and dimeric tert-butylcyanoketene with azomethines) Ernst Schaumann, Herbert Mrotzek Chemische Berichte 111, 661-672 (1978) |
| 41 |
Cycloadditionsreaktionen von Heterocumulenen, XII: Umsetzung von persubstituierten Isothioharnstoffen mit Isocyanaten (Cycloaddition reactions of heterocumulenes, XII. Reaction of persubstituted isothioureas with isocyanates) Ernst Schaumann, Erwin Kausch, Jean-Paul Imbert, Gunadi Adiwidjaja Chemische Berichte 111, 1475-1485 (1978) |
| 40 |
Cycloadditionsreaktionen von Heterocumulenen, XIII: Struktur und Reaktionsverhalten der 1:1-Addukte aus 3-Dialkylamino-2,2-dimethyl-2H-azirinen und Kohlenstoffdisulfid (Cycloaddition reactions of heterocumulenes, XIII. Structure and reactivity of the 1:1-adducts from 3-dialkylamino-2,2-dimethyl-2H-azirines and carbon disulfide) Ernst Schaumann, Erwin Kausch, Susanne Grabley, Helmut Behr Chemische Berichte 111, 1486-1496 (1978) |
| 39 |
Unusual incorporation of the cyano group of tert-butylcyanoketene into a cycloadduct. X-ray structure of the pyrimido[1,6-e][1,3-s]dioxazine formed Ernst Schaumann, Herbert Mrotzek, Gunadi Adiwidjaja Journal of the Chemical Society, Chemical Communications 820-821 (1978) |
| 38 |
Cycloadditionsreaktionen von Heterokumulenen, XIV. 1,4-Dipole aus persubstituierten Guanidinen und Heterokumulenen (Cycloaddition reactions of heterocumulenes, XIV. 1,4-Dipoles from persubstituted guanidines and heterocumulenes) Ernst Schaumann, Erwin Kausch, Elisabeth Rossmanith Justus Liebigs Annalen der Chemie 1543-1559 (1978) |
| 37 |
Cycloadditionsreaktionen von Heterokumulenen, XV. Umsetzung von persubstituierten Isothioharnstoffen mit Isothiocyanaten und mit Kohlenstoffdisulfid (Cycloaddition reactions of heterocumulenes, XV. Reaction of persubstituted isothioureas with isothiocyanates and with carbon disulfide) Ernst Schaumann, Erwin Kausch Justus Liebigs Annalen der Chemie 1560-1567 (1978) |
| 36 |
Cycloadditionsreaktionen von Heterokumulenen, XVI. Umsetzung von 3-Dimethylamino-2-phenyl-2H-azirinen mit Isocyanaten und Isothiocyanaten (Cycloaddition reactions of heterocumulenes, XVI. Reaction of 3-dimethylamino-2-phenyl-2H-azirines with isocyanates and isothiocyanates) Ernst Schaumann, Susanne Grabley Justus Liebigs Annalen der Chemie 1568-1585 (1978) |
1977 | |
| 35 |
α-Thiolactones from thioketenes Ernst Schaumann, Ulrich Behrens Angewandte Chemie, International Edition in English 16, 722-723 (1977) Translated: Angewandte Chemie 89, 750-751 (1977) |
| 34 |
Cycloadditionsreaktionen von Heterokumulenen, IX. 1:1-, 2:1- und 3:1-Addukte aus der Umsetzung von Isothiocyanaten mit 3-Dimethylamino-2,2-dimethyl-2H-azirin (Cycloaddition reactions of heterocumulenes, IX. 1:1-, 2:1-, and 3:1-Adducts from the reaction of isothiocyanates with 3-dimethylamino-2,2-dimethyl-2H-azirine) Ernst Schaumann, Erwin Kausch, Wolfgang Walter Chemische Berichte 110, 820-832 (1977) |
| 33 |
The crystal and molecular structure of the cycloadduct from an activated carbodiimide and methyl isothiocyanate Ernst Schaumann, Erwin Kausch, Karl-Heinz Klaska, Rolf Klaska, Otto H. Jarchow Journal of Heterocyclic Chemistry 14, 857-860 (1977) |
| 32 |
Cycloaddition reactions of heterocumulenes. Part 8. Crystal structure and valence tautomerism of 5-dimethyliminio-4,4-dimethyl-2-thiazoline-2-thiolate Ernst Schaumann, Erwin Kausch, Jean-Paul Imbert, Karl-Heinz Klaska, Rolf Klaska Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry 466-469 (1977) |
| 31 |
Darstellung
und Eigenschaften von α-Alkoxyalkylphosphonsäureestern (Preparation and properties of α-alkoxyalylphosphonates) Ernst Schaumann, Fritz-Feo Grabley Justus Liebigs Annalen der Chemie 88-100 (1977) |
| 30 |
Molecular structure of the unusual product of hydrolysis of a carbodiimide Ernst Schaumann, Erwin Kausch, Karl-Heinz Klaska, B. Metz Naturwissenschaften 64, 528-529 (1977) |
| 29 |
Konkurrenz zwischen 1,2- und 1,3-Ringöffnung in der Umsetzung von 3-Dimethylamino-2phenyl-2H-azirinen mit Kohlenstoffdisulfid (Cycloaddition reactions of heterocumulenes. X. Competition between 1,2- and 1,3-ring opening in the reaction of 3-dimethylamino-2-phenyl-2H-azirines with carbon disulfide) Ernst Schaumann, Susanne Grabley, Klaus-Dieter Seidel, Erwin Kausch Tetrahedron Letters 18, 1351-1354 (1977) |
| 28 |
Thiophile addition of phenyllithium to thioketen S-oxide Ernst Schaumann, Wolf-Rüdiger Klein Tetrahedron Letters 18, 3457-3460 (1977) |
| 27 |
Stable silylthioketenes by a thio-Claisen rearrangement Ernst Schaumann, Fritz-Feo Grabley Tetrahedron Letters 18, 4307-4310 (1977) |
1976 | |
| 26 |
X-ray structural analysis of a dialkylthioketene Ernst Schaumann, Surya Harto, Gunadi Adiwidjaja Angewandte Chemie, International Edition in English 15, 40-41 (1976) Translated: Angewandte Chemie 88, 25-25 (1976) |
| 25 |
Cycloadditionsreaktionen von Heterokumulenen, VI: Umsetzung von Thioketenen mit Azomethinen (Cycloaddition reactions of heterocumulenes, VI. The reaction of thioketenes with azomethines) Ernst Schaumann Chemische Berichte 109, 906-921 (1976) |
| 24 |
Cycloadditionsreaktionen von Heterokumulenen, VII. 1,4-Dipole aus Vinylidendiaminen und Isocyanaten oder Isothiocyanaten (Cycloaddition reactions of heterocumulenes. VII. 1,4-Dipoles from vinylidenediamines and isocyanates or isothiocyanates) Ernst Schaumann, Stefan Sieveking Justus Liebigs Annalen der Chemie 2284-2293 (1976) |
| 23 |
Beiträge zur Chemie der Thioketene Ernst Schaumann Habilitationsschrift, Hamburg (1976) |
1975 | |
| 22 |
X-Ray Structure Analysis of a Stable Dipole Ernst Schaumann, Armin Röhr, Stefan Sieveking, Wolfgang Walter Angewandte Chemie, International Edition in English 14, 493-493 (1975) Translated: Angewandte Chemie 87, 486-487 (1975) |
| 21 |
Ringöffnungsreaktionen der 3-Dialkylamino-2H-azirine mit Carbonsäurederivaten (Ring opening reactions of 3-dialkylamino-2H-azirines with carboxylic acid derivatives) Ernst Schaumann, Erwin Kausch, Wolfgang Walter Chemische Berichte 108, 2500-2509 (1975) |
| 20 |
Structure of thioamides and their derivatives. XXXIII. Kinetics of the acid-catalyzed E-Z-isomerization of N-neopentylthioformamide in 0-dichlorobenzene Wolfgang Walter, Marcia Franzen-Sieveking, Ernst Schaumann Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry 528-530 (1975) |
1974 | |
| 19 |
NMR spectroscopic studies of hindered rotation in primary amides and thioamides Ernst Schaumann Angewandte Chemie, International Edition in English 13, 350-350 (1974) |
| 18 |
Thiophile Addition von Phenyllithium an Thioketene (Thiophilic addition of phenyllithium to thioketenes) Ernst Schaumann, Wolfgang Walter Chemische Berichte 107, 3562-3573 (1974) |
| 17 |
Cycloadditionsreaktionen von Heterokumulenen, III. Thermische Cycloadditionsreaktioinen von Heterokumulenen mit 2-Dialkylaminoazirinen (Cycloaddition reactions of heterocumulenes. III. Thermal cycloaddition reactions of heterocumulenes with 2-(dialkylamino)azirines) Ernst Schaumann, Erwin Kausch, Wolfgang Walter Chemische Berichte 107, 3574-3588 (1974) |
| 16 |
Cycloadditionsreaktionen von Heterokumulenen, IV. Die Reaktion von Dimethylketen-O, N-acetalen mit Iso(thio)cyanaten (Cycloaddition reactions of heterocumulenes. IV. Reaction of dimethylketene O,N-acetals with iso(thio)cyanates) Ernst Schaumann, Stefan Sieveking, Wolfgang Walter Chemische Berichte 107, 3589-3601 (1974) |
| 15 |
Cycloaddition reactions of heterocumulenes. II. Cycloaddition reactions of sulfonyl isothiocyanates with β,β-disubstituted enamines Ernst Schaumann, Stefan Sieveking, Wolfgang Walter Tetrahedron 30, 4147-4152 (1974) |
| 14 |
Darstellung stabiler 1.4-Dipole aus β,β-Dialkyl-enaminen und Sulfonylisocyanaten (Preparation of stable 1,4-dipoles from β,β-dialkyl enamines and sulfonyl isocyanates) Ernst Schaumann, Stefan Sieveking, Wolfgang Walter Tetrahedron Letters 15, 209-212 (1974) |
| 13 |
Structure of thio amides and their derivatives. XXVII. Site of protonation in primary thio amides Wolfgang Walter, Marcia Franzen-Sieveking, Ernst Schaumann Tetrahedron Letters 15, 839-842 (1974) |
| 12 |
Eine Orientierungseinheit für Studienanfänger der Naturwissenschaften. Beispiel Chemie Jürgen Klüver, Rolf Schulmeister, Wolfgang Bünder, Dietrich Helling, Walter Kaminsky, Joseph Kittsteiner, Jürgen Kopf, Ernst Schaumann, Joachim Thiem, Jürgen Voss , Hanno Hertz, Uwe Krey, Hans-Jürgen Seifert, Peter Suhr, Günther Radach, Herbert Mehrtens Blickpunkt Hochschuldidaktik 30 (1974), Verlag: AHD Arbeitgemeinschaft für Hochschuldidaktik, Hamburg |
1972 | |
| 11 |
Structure of thioamides and their derivatives. XXI. Temperature dependence in the NMR spectra of urea, thiourea, and selenourea Wolfgang Walter, Ernst Schaumann, H. Roe Tetrahedron 28, 3233-3239 (1972) |
1971 | |
| 10 |
Über die Struktur der Thioamide und ihrer Derivate, XI. NMR-Spektroskopische Untersuchungen und Mechanismus der Isomerisierung von Thioamid-Anionen (Structure of thioamides and their derivatives. XI. NMR studies and the mechanism of isomerization of thioamide anions) Wolfgang Walter, Ernst Schaumann Chemische Berichte 104, 4-10 (1971) |
| 9 |
Über die Struktur der Thioamide und ihrer Derivate, XV. Trennung der geometrischen Isomeren und Bestimmung der Rotationsbarrieren bei N-Alkyl-thioamiden (Structure of thioamides and their derivatives. XV. Separation of geometric isomers and determination of rotational barriers in N-alkylthioformamides) Wolfgang Walter, Ernst Schaumann Chemische Berichte 104, 3361-3377 (1971) |
| 8 |
Über die Struktur der Thioamide und ihrer Derivate, XII. Untersuchungen zur behinderten Rotation bei Thiohydroxamsäuren (Structure of thioamides and their derivatives. XII. Hindered internal rotation in thiohydroxamic acids) Wolfgang Walter, Ernst Schaumann Justus Liebigs Annalen der Chemie 743, 154-166 (1971) |
| 7 |
Temperaturabhängigkeit der NMR-Spektren von O.N-Dialkyl-hydroxylaminen (Temperature dependence of the NMR spectra of O,N-dialkyl hydroxylamines) Wolfgang Walter, Ernst Schaumann Justus Liebigs Annalen der Chemie 747, 191-193 (1971) |
| 6 |
Difference in the barrier heights for internal rotation between amides and thioamides Wolfgang Walter, Ernst Schaumann, Jürgen Voss Organic Magnetic Resonance 3, 733-735 (1971) |
| 5 |
Chemistry of thiohydroxamic acids Wolfgang Walter, Ernst Schaumann Synthesis 111-130 (1971) |
1970 | |
| 4 |
Untersuchungen zur geometrischen Isomerie bei Thioamiden und Thiohydroxamsäuren Ernst Schaumann -/- Betreuer: Wolfgang Walter Dissertation, Hamburg (1970) |
1969 | |
| 3 |
Über die Struktur der Thioamide und ihrer Derivate, III. H-NMR-spektroskopischer Nachweis der behinderten Rotation bei primären Thioamiden an 15N-Thioacetamid (Structure of thioamides and their derivatives. III. Proton-N.M.R. spectroscopic detection of hindered rotation of primary thioamides studied with thioacetamide-15N) Wolfgang Walter, Hans Peter Kubersky, Ernst Schaumann, Karl-Julius Reubke Justus Liebigs Annalen der Chemie 719, 210-212 (1969) |
| 2 |
Über die Struktur der Thioamide und ihrer Derivate, VI. Zur magnetischen Anisotropie der Thioamid-Gruppe (Structure of thioamides and their derivatives. VI. Magnetic anisotropy of the thioamide group) Wolfgang Walter, Ernst Schaumann, Hans Paulsen Justus Liebigs Annalen der Chemie 727, 61-70 (1969) |
1968 | |
| 1 |
Separation and properties of the cis-trans isomers of N-alkylthioformamides Wolfgang Walter, Ernst Schaumann, Karl-Julius Reubke Angewandte Chemie, International Edition in English 7, 467-467 (1968) |